diff --git a/README.MD b/README.MD
index ee25f2e..00aa2b9 100644
--- a/README.MD
+++ b/README.MD
@@ -3,6 +3,8 @@
 A lightweight node application that allows to exchange signals connection through websockets.
 
 
+WARNING WARNING WARNING : Do not try to launch my project on a computer not connected to any network, it will not work (Firefox is unable to create Ice candidate on such configuration) !!!! (However, if you run your own STUN/TURN server, an Internet connection will not be required at all)
+
 # Requirements
 ```sh
 sudo apt install nodejs node-express node-wc